Study on constitutive model and permeable coefficient tensor of rock under tensile load with micromechanics (Ⅱ): Anisotropic permeable coefficient tensor and example
WEI Li-de, YANG Chun-he, XU Wei-ya. Study on constitutive model and permeable coefficient tensor of rock under tensile load with micromechanics (Ⅱ): Anisotropic permeable coefficient tensor and example[J]. 2005, 26(12).
WEI Li-de, YANG Chun-he, XU Wei-ya. Study on constitutive model and permeable coefficient tensor of rock under tensile load with micromechanics (Ⅱ): Anisotropic permeable coefficient tensor and example[J]. 2005, 26(12).DOI:
There are a few paper discussed establishing permeable coefficient tensor of rock under tensile load until now. In this paper
an anisotropic permeable coefficient tensor of rock under tensile load
thingking about hydraulic pressure
microcrack extending and distortion
is established. The equations of the theories in previous paper and this paper are deduced for rock under axial tensile loading. The presented models are compared with experimental data. The comparative results show that the constitutive model can reflect all phases of stress-strain curve and the character that hydraulic pressure make rock strength lower. The permeable coefficient tensor can reflect the anisotropy and the evolvement of seepage in rock. The permeable coefficient tensor can be applied to rock mass too.